feat: 增加交互

[liuzhenying]

矩形树图拟计划提供三种交互

• 下钻：效果见下图
• 放大：直接使用 view-zoom 即可
• drag-move: 移动 散点图的 drag-move 到公共目录

PR includes

• add / modify test cases
• documents, demos

Screenshot

Before	After
❌
为矩形树图提供下钻交互

[github-actions]

😭 Deploy PR Preview 7888536 failed. Build logs

_{🤖 By surge-preview}

[coveralls]

Pull Request Test Coverage Report for Build 512064471

• 84 of 88 (95.45%) changed or added relevant lines in 6 files are covered.
• 2 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.04%) to 96.68%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/plots/treemap/interactions/treemap-drill-down.ts	6	7	85.71%
src/plots/treemap/interactions/util.ts	12	13	92.31%
src/plots/treemap/interactions/actions/treemap-drill-down-action.ts	29	31	93.55%

Files with Coverage Reduction	New Missed Lines	%
src/plots/pie/adaptor.ts	1	94.02%
src/plots/waterfall/adaptor.ts	1	95.74%

Totals
Change from base Build 510934906:	-0.04%
Covered Lines:	4718
Relevant Lines:	4765

---

💛 - Coveralls

[lgtm-com]

This pull request introduces 1 alert when merging 27d9b84 into 510c1b5 - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

[lgtm-com]

This pull request introduces 1 alert when merging 0912978 into 6787c8b - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

[lgtm-com]

This pull request introduces 1 alert when merging f44020d into 6787c8b - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

[hustcc]

@liuzhenying 覆盖率稍有降低~我先合并，后面在处理